A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
Classification: Nuts of iron or steel
NSN 5996-01-542-8611
NSN 5999-01-481-8494
NSN 4140-01-073-7436
NSN 5975-01-425-1101
NSN 5990-00-226-1152
NSN 5950-01-566-5449
NSN 5950-00-778-8712
NSN 6610-01-406-4985
NSN 5999-00-784-2835
NSN 5895-00-752-0030
NSN 5975-01-180-0826
NSN 6645-01-229-9769